Now, the map program is letting users explore more than 75 miles of paths and trails surrounding the Grand Canyon, from ground level.

To capture the natural wonder, Google's team strapped on 40-pound, Android-operated backpacks carrying a 15-lens camera system. They traversed the rocky terrain on foot, collecting some 9,500 panoramas.

We tested out the program by taking a walking tour of one of the Canyon's most popular trails, the Bright Angel Trail, and saw some stunning views.